('US') the 'food pyramid' [=a drawing or chart that is shaped like a pyramid and that shows the type of food you should eat for a healthy diet]
the ancient 'pyramids' of Egypt
a 'pyramid' of apples/oranges
(..) in this country... when smart people were considered cool. Well, maybe not cool, but smart people did things... like build ships and pyramids, and they even went to the moon. Yeah! And there was a time in this country, a long time ago... when reading wasn't (..)2006 Idiocracy